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Customer Liabilities (Tables)
6 Months Ended
Sep. 30, 2018
Contract with Customer, Liability [Abstract]  
Customer liabilities

   

September 30, 2018

   

March 31, 2018

 
           (Recast)  
Banking customers   $ 39,072     $ 9,305  
Brokerage customers     30,768       21,367  
Total   $ 69,840     $ 30,672